// Copyright 2019-2025 The Liqo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package virtualnodectrl

import (
	"context"

	corev1 "k8s.io/api/core/v1"
	"k8s.io/klog/v2"
	"sigs.k8s.io/controller-runtime/pkg/client"
)

// cordonNode cordons the controlled node setting it in the unschedulable state.
func cordonNode(ctx context.Context, cl client.Client, node *corev1.Node) error {
	if node == nil {
		return nil
	}
	node.Spec.Unschedulable = true
	if err := cl.Update(ctx, node); err != nil {
		klog.Error(err)
		return err
	}
	return nil
}
